Buffer Control to Support a Seamless Stream Handoff in a WLAN that Employs Simulcast Streaming

in Sciences Citation Index(SCI), 科學引文索引資料庫(SCI)
標題Buffer Control to Support a Seamless Stream Handoff in a WLAN that Employs Simulcast Streaming
出版類型SCI(Sciences Citation Index)
出版年度2008
AuthorsSheau-Ru Tong, 童曉儒
出版日期2008 / 1
其他編號0000
中文摘要

Abstract—This paper studies the buffer control issues that are related to supporting a
seamless stream handoff in a WLAN environment that employs simulcast streaming. We
analyze the impacts of the handoff disruption period and inter-AR synchronization variance.
We also derive theoretical results that concern how a seamless stream handoff can be
guaranteed in terms of the minimum buffer and backlog requirements. Based on the results,
an MH-controlled-AR-pushed buffer control scheme is proposed and its cooperation with
FMIPv6 is also discussed. The simulation results confirm the effectiveness of our scheme. In
general, the deployment of a few-hundred-millisecond video-clip buffer in ARs and MHs is
sufficient to achieve the seamless stream handoff most of the time, subject to fairly relaxed
constraints of the inter- AR synchronization variance (ranging ± 150ms) and handoff
disruption period (around50ms).

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期刊名稱IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS
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